baber/WOPTO huggingface dataset:
Patent GB-337023-A (GB)
Title: Improvements in variable velocity ratio mechanism
IPC: B23Q35/10
Filed: 1929-06-26
Abstract: 337,023. Kent, Ltd., G., and Douglas, J. G. June 26, 1929. Milling helical surfaces.-A machine for cutting cams such as those used in automobile steering gears of the type in which a helicoidal cam is engaged by one or more rollers mounted on a rocker arm, embodies a variable velocity-ratio mechanism comprising rotary driving and driven members moving relatively in an axial direction, one of the members having a cam surface engaged by the other member to vary the speed of the driven member so that cams of either constant or variable pitch may be cut. The cam block A is mounted between centres 24, 25, the centre 24 being carried by a shaft 22 driven by worm gearing 23. The shaft 22 is connected by chain gearing 20 with a shaft 5 which carries a splined sleeve 4 secured to a screw 6 engaging in a nut 7. A driving lug 3 extending from the sleeve 4 is adapted to engage a cam surface 2 on a sleeve 1 secured to a bush 8 on a driving shaft 9 which is connected by bevel gearing 11 and chain gearing 12 to a housing 15 rotatable in a bearing 16. Thus, if the shaft 5 is driven at constant speed from the work headstock; the driving lug 3 will, during its rotation, move axially along the cam surface 2 to impart a variable velocity to the shaft 9 and housing 15. The housing is eccentrically bored to receive a spindle 17 driven from a pulley 18 and carrying a milling-cutter 31 operating on the block A, the eccentricity of the spindle 17 in the housing being equal to the radius of the rocker arm in the finished steering gear. Preferably, in the finished gear, the roller is arranged to contact with both sides of the cam track only in the central position thereof, a certain degree of backlash being desirable towards the ends of the travel. In order to secure this effect the face of the housing carries an arcuate cam 30,. which is spring-pressed against a stationary abutment 28 .by means of springs 27 engaging the bearing 16 so that, during operation, the housing is moved slightly to and from the blank .axis to vary the depth of cut of the cutter 31.
Patent GB-412044-A (GB)
Title: Improved manner of and means for forming balls or rolls of sliver
IPC: D01G27/00
Filed: 1933-07-11
Abstract: 412,044. Sliver balling apparatus. PATERSON, H., c/o Belvedere Jute Mills Co., Sankrail, Bengal Nagpur Railway, Bengal, India. July 11, 1933, No. 19684. Convention date, April 11. [Class 120 (i).] In a sliver-balling machine wherein the ball is wound upon a core or centre between preferably rotatable side discs or plates 7, Figs. 1 and 7, the centre and the ball being driven by contact with a belt or driving band 6, the belt or band is automatically controlled to maintain pressure upon the ball during winding but upon completion of the ball or its discharge by axial withdrawal of the half centres 16 the belt or band follows up in timed relation so as not to re-engage the centre or core until after the half centres are brought together thus avoiding any nipping of the belt or band. Backward movement of the belt or band is resisted by brake means 3, 23, Fig. 2. The belt 6 is driven by sprockets 2<a> on a pulley 2, Figs. 15 and 16, fixed to the constantly rotating main driving shaft 1 and also passes round a pulley 5 supported by an arm or bracket 4 connected to the brake pulleys 3 and pivotable about the shaft 1. The half cores or centres 16 are supplied from magazines 17, Fig. 7, and during winding are positioned on the retractable centre arbors 15, 15<a>. The arbor operating levers 21 are pivoted at 18, Fig. 5, and are actuated by rollers 22 engaging the grooves 20<a> of cams 20 which together with other cams 26, 29, Figs. 1 and 2, are mounted on a counter shaft 19. When the sliver ball has attained the requisite diameter a chain 36, Figs. 4 and 13, fixed to the rear of the brake pulley 3 trips a catch 35 hinged at 35<a> and releases a bell crank lever 33 pivoted on the web of a flanged wheel 32. The end 34<a> of a second bell crank lever is then forced by a spring 37 into engagement with a tooth 31<a> on the boss of a sprocket wheel which is driven by a chain 30<a> from a sprocket wheel 30 on the shaft 1, thereby rotating the shaft 19 and through the cams 20, 26, 29 serving to withdraw the centres 15 and allow the completed ball to fall, to release the pressure of the brake band 23 and to move the brake pulleys 3 and arm 4 back to the starting position. The lever 35 then drops and engages the end 33<b> of the bell-crank lever 33 and thus removes the member 34<a> from the tooth 31<a> and stops the wheel 32 and counter shaft 19. The discs or plates 7 revolve on rollers 9, 9<a> the lower roller 9<a> being mounted on an eccentric spindle 11 to allow the discs to be eased axially to facilitate discharge of the ball. The lever 35 may be tripped by the pedal 38 if it is desired to discharge a partly finished ball while the brakeband 23 may be relieved by the pedal 39 independently of the cams 26.
Patent GB-1410441-A (GB)
Title: Triangulation system for determining the heading of an  aircraft
IPC: G01C25/00
Filed: 1973-04-25
Abstract: 1410441 Photo-electric attitude measuring SOC D'ETUDES ET DE REALISATIONS ELECTRONIQUES 25 April 1973 [28 April 1972] 19724/73 Addition to 1277182 Heading H4D A device for determining the heading of a craft, e.g. an aircraft on a runway, comprises two direction finders viewing the craft head-on and co-operating with two markers on the craft defining an axis perpendicular, or substantially perpendicular, to the fore-aft axis of the craft. Direction finders 7, 8 obtain angles alpha0, alpha1, #0, #1 respectively, by co-operating with light sources 4, 5 on the aircraft. A computer (15) (Fig. 2, not shown) determines the angle # from the measured angles and an angle Ct1 = #+gamma0. This latter angle is transmitted to the aircraft where it is compared to the heading Cd indicated by the aircraft heading indicator. Additionally, angle alpha is incorporated to convert Ct to the heading C (relative to geographical north GN). The error between the heading measured by the direction finders and the heading indicated by the aircraft instrument is used to correct the instrument. It is stated that the error in measuring C (the error arising due to movement of the aircraft between angle measurements), can be reduced if the direction finders rotate in opposite direction when measuring the angles. In a further embodiment (Fig. 4, not shown), the direction finders are placed on opposite sides of a runway so that the heading of an aircraft taking off can be determined.
Patent GB-586863-A (GB)
Title: Improvements in the attachment of handles or knobs to spindles
IPC: E05B3/10
Filed: 1944-10-13
Abstract: 586,863. Attaching knobs to spindles. LEGGE & CO., Ltd., J., and LEGGE, F. V. Oct. 13, 1944, No. 19742. [Class 44] A handle B is secured to a spindle A having an open-ended slot a by a self-tapping or other screw C which passes freely through a plain radial hole in the shank of the handle and engages the sides of the slot to press the spindle against opposite sides of an axial hole in the handle. The spindle may be built up of three metal strips riveted or otherwise secured together.
Patent GB-1513401-A (GB)
Title: Data transmission method and apparatus
IPC: H03M7/30
Filed: 1975-05-12
Abstract: 1513401 Data transmission SPERRY RAND CORP 12 May 1975 [13 May 1974] 19788/75 Heading H4P In a digital data communication system, compaction of transmitted data is achieved by the use of variable-length bit pattern combinations to represent transmitted characters. In the described embodiment characters having a fixed length of 8 bits are transmitted as characters having a length of 8, 6 or 5 bits plus an additional "short" bit that precedes the variable length characters. The individual lengths are determined as follows:- if the five lowest order bits of the eight bit character contain an odd number of I bits and the three upper order bits are 0 bits, then only the five lowest order bits are transmitted and the short bit is transmitted as an 0 bit; if the five lowest order bits contain an even number of 1 bits and the two highest order bits are 0 bits then only the six lowest order bits are transmitted and the short bit is transmitted as an 0 bit; for all other configurations all eight bits are transmitted and the short bit is transmitted as a 1 bit. Thus, the value of the short bit indicates to a receiver whether or not the character has been compacted, whilst the parity of selected least significant bits indicates the number of zeros omitted from a character. Suitable arrangements for effecting the compaction of the characters to be transmitted and for the subsequent expansion of received compacted characters into their original format are described in detail in the Specification.
Patent GB-418531-A (GB)
Title: Method of and means for driving arbors or spindles for package carriers in apparatusfor cross-winding fibrous materials into cones, cheeses, and such like
IPC: B65H59/38
Filed: 1933-08-12
Abstract: 418,531. Driving-arrangements for cross-winding machines. AYRTON & CO., Ltd., W., BAINES, E. C., (Representative of BAINES, E. N.), Gorebrook Ironworks, Longsight, Manchester, and OSBORNE, F., Donna- Nook, Bramhall Lane, Stockport, Cheshire. Aug. 12, 1933, No. 19798. [Class 120 (ii).] In precision cross-winding machines for yarn, thread, twine, string and the like, wherein the traverse cam is housed in a drum which moves angularly outwards as the package is wound, and the winding-spindle is adapted to be driven at a variable speed, the movement of the drum a is utilized to reduce the spindle speed In accordance with the growth of the package by means of an arm n fixed to an extension of the drum and adjustably connected by an adjustable link and lever system n', o with the beltshifter lever q of cone belt mechanism 1, 2 geared with the winding-spindle shaft by a belt t.
Patent GB-1128104-A (GB)
Title: A process for the production of concentrated phosphoric acid
IPC: C01B25/234
Filed: 1966-05-05
Abstract: 1,128,104. Production and liquid-liquid extraction of phosphoric acid. CHEMICALS & PHOSPHATES Ltd. 5 May, 1966 [25 May, 1965; 28 Jan., 1966], No. 19879/66. Heading C1A. Phosphoric acid of high P 2 O 5  content is produced by mixing with sulphuric acid, rock phosphate preheated to such a temperature that the mixture reaches 100‹ C. after mixing and before reaction. The rock phosphate may be preheated to 250‹ to 500‹ C. or 500‹ to 1000‹ C. with H 2 SO 4  of concentration 98 to 90% or 90% to 80% respectively. To allow the reaction to reach completion, the mixture may be maintained at its reaction temperature for 10 minutes to 24 hours, or cooled and reheated to 200‹ C., or denned. If all the fluorides produced do not escape during the preheating and reaction .stages, hot gases are passed through the solid, substantially dry, granular product to remove them. The phosphoric acid may then be extracted with water (adding a flocculating agent to form a sludge with the residual CaSo 4  in suspension in the extracted acid) or with an organic solvent such as aliphatic, cycloaliphatic or aromatic alcohols, esters, aldehydes, ketones, acids, ethers or other oxygen-containing hydrocarbon derivatives or with a mixture of organic solvents, some of which need not dissolve H 3 PO 4 . To produce H 3 PO 4  free of H 2 SO 4 , a two stage extraction produces a first extract containing both acids, and a second extract of H 3 PO 4  alone. Alternatively, a slightly sub-stoichiometic quantity of H 2 SO 4  such as 90 to 95% may be used, the H 3 PO 4  extracted and the P 2 O 5  in the extract residue recovered by reheating it with H 2 SO 4  and extracting a mixture of the two acids. Alternatively, the extracted H 2 SO 4 -containing H 3 PO 4  may be treated with NH 3  to precipitate ammonium phosphate, from which the H 3 PO 4  may be obtained.
Patent GB-646759-A (GB)
Title: Improved football pool coupons or similar sheets for receiving data
Inventor: LEWIS LOUIS NORMAN
IPC: A63F3/06
Filed: 1948-07-26
Abstract: 646,759. Football-pool coupons &c. LITTLEWOODS POOLS, Ltd. July 26, 1948, No. 19897. [Class 16] A football-pool coupon 1 or similar sheet for receiving data, is printed with two groups of parallel disposed areas 7, 8. 9, 10 and 3, 4, 5, 6, respectively the latter only having permanently printed indicia 12, the two groups of areas being divided by a blank space 11 along which the sheet may be severed so that data entered in the areas 7, 8, 9, 10 on the severed portion 2a can be matched against a sheet portion bearing similar indicia 12 to the portion 2 of the original sheet from which it was severed. The arrangement saves paper as the indicia 12 is not printed on the portion 2a of the sheet. The blank space is preferably nearer to one side of the sheet which may be printed in a similar way on its reverse side with the blank spaces 11 on each side coincident.
Patent GB-433824-A (GB)
Title: Improvements in or relating to composite sheets
IPC: E04C2/292
Filed: 1934-07-07
Abstract: 433,824. Metal - faced plywood. VENESTA, Ltd., and STEVENSON, C. E., Vintry House, Queen Street Place, London. July 7, 1934, No. 19986. [Class 145 (ii)] [See also Groups VIII and X] In compound sheet material comprising a thin metal facing sheet united by an adhesive to a core or base of plywood, fibre board, or the like, the adhesive is rendered ineffective for a distance inwards from an edge or edges of the sheet to facilitate turning back the edge of the metal sheet so that nails &c. for securing the compound sheet to a frame pass only through the plywood &c. and are subsequently concealed by pressing down the metal sheet. When a liquid adhesive applied to the metal or the plywood &c. or to both sheets is employed a flexible strip of paper, metal or regenerated cellulose foil, &c., coated with a weak adhesive, is interposed between the edges of the superposed sheets, or when one sheet only is coated with adhesive an untreated paper strip may be used. Alternatively one of the sheets may be treated near the edge with wax, oil, &c. When a dry adhesive, e.g. paper impregnated with glue or artificial resin is used, these methods may be used, or the impregnated paper sheet may be of such a size as to leave the edge unadhered. Alternatively paper which will readily laminate into portions d<1> and d<2> may be interposed between the edges of the plywood a and the metal face b. After the compound sheet has been secured to, a frame e, e.g. by a nail f, the edge b<1> may be secured to the edge of the metal sheet of an adjacent compound sheet, for example by seaming, the metal sheet being made larger than the plywood sheet for this purpose.
Patent GB-1492917-A (GB)
Title: Granules and powders for the preparation of ointments
IPC: A61K47/00
Filed: 1976-05-14
Abstract: 1492917 Compositions for use in preparing ointments BAYER AG 14 May 1976 [17 May 1975] 20008/76 Heading A5B A granular or powdered composition for use in the preparation of ointments comprises an anionic crosslinked carboxyvinylpolymer of M.W. from 860,000 to 1,000,000 which is insoluble in water but which swells in water, and an alkaline substance, the polymer and/or the alkaline substance being coated with a lipophilic vehicle substance and/or with an emulsifier. Examples are given of ointments which contain boric acid sulphanilo thio carbamide, clotrimazol, menthol, procaine hydrochloride, heparinoid, sulphur and salicylic acid.
Patent GB-148168-A (GB)
Title: Improvements in or relating to concentrating apparatus for separating substances according to their specific gravity
IPC: B03B5/10
Filed: 1920-07-09
Abstract: 148,168. Schranz, H. Dec. 27, 1916, [Convention date]. Pneumatic separating.-A carrier is formed of material, such as artificial stone, which is porous to liquids or gas but does not allow the solid particles to pass through. In the form shown in Fig. 1, where water is used for classifying purposes, a1, a2, and a3 are porous carriers on to which the ore is fed from a.hopper h, the water being fed through pipes d1, d2, and d3 into separate sections divided by the walls c, thence passing through the carriers to the ores. The apparatus is jolted by the rotating lifting-wheel e aided by springs g1, the motion thus produced causing the mixture of ore to stratify into horizontal layers. The specifically heavier material is drawn off through delivery pipes b1 b2, and b3, while the lighter materials float off with the water through the overflow conduit b4. In a modification, the trough is made in the form of a gutter from porous material with the exit end constricted in sectional area. The material when fed in meets a current of air or water, and at the same time is subjected to a jolting action, being classinsd into layers which pass off in succession over the sides of the gutter at the constricted end.
Patent GB-912671-A (GB)
Title: Improvements in or relating to guided missiles
Inventor: COSGROVE MICHAEL
IPC: F41G7/36
Filed: 1960-06-08
Abstract: 912,671. Guided missiles. PYE Ltd. June 6, 1961 [June 8, 1960], No. 20116/60. Classes 9 (1) and 9 (2). [Also in Group XXXIII] A guided missile has guiding means such as a jet deflector 1a which is rotatable about the longitudinal axis of the missile and is rollstabilized independently of the roll of the missile by a gyroscope 6 via a servo-mechanism 13. The jet deflector is mounted on a turntable 1 controlled by an electric motor 3 geared to a toothed ring 5. A circular resistance 7 is fixed to the missile body and a reference potential is fed via slip rings 8 to mutually insulated brushes 9 disposed 180 degrees apart, the brushes being linked to the gyro 6 so that they remain stationary when the missile rolls. Connections are taken from points around resistance 7 to corresponding points of a similar resistance 10. Mutually insulated brushes 11, mounted to rotate with the turn-table, are connected via slip rings 12 to the servomechanism 13, the output of which is fed via slip rings 14 to motor 3. When brushes 11 are at right angles to brushes 9 there is no resultant voltage, but with any roll of the missile resistance 7 moves relative to the brushes 9 and an error voltage is fed to the servo-mechanism 13, thereby operating motor 3 to maintain the jet deflector 1a in its stabilized position. A second embodiment describes fins mounted on a rotatable tail portion under control of an electric motor geared to a toothed ring mounted on the inside surface of the missile body. The control system is the same as in the first embodiment.
Patent GB-836056-A (GB)
Title: Improved process for recovery of polymers from solution
Filed: 1957-06-26
Abstract: Normally solid polymers of 1-olefins having a maximum of 8 carbon atoms per molecule and no branching nearer the double bond than the 4-position are separated from solutions thereof, by dispersing the solution into water as a plurality of fine droplets, the water being kept at above polymer precipitation temperature and the pressure of the resulting dispersion of solution in water being sufficient to prevent evaporation of solvent and water, cooling the dispersion to below precipitation temperature so forming a three-phase dispersion of solids, water and solvent and separating the solids from the liquids.  Specified olefins are ethylene, propylene, 1-butene, 1-hexene, 1-octene, 4-methyl-1-pentene, 4-methyl-1-hexene, 5 - ethyl - 1 - hexene, 6 - methyl - 1 - heptene, and 4 - ethyl - 1 - hexene, while hydrocarbons, preferably paraffins, are the preferred solvents. The polymer is preferably prepared using as catalyst chromium oxide in association with at least one of silica, alumina, thoria or zirconia.  The ratio of water to polymer solution in the dispersion step is preferably 1 to 10 volumes water per volume solution, the solution having a polymer concentration of 2 to 5 weight per cent. The solvent may be removed by flashing and/or stripping.  Apparatus for carrying out the process is described.
Patent GB-656237-A (GB)
Title: Transmission lines including directive pick-up devices
IPC: H01P5/18
Filed: 1947-07-25
Abstract: 656,237. Power and current measuring. WESTERN ELECTRIC CO., Inc. July 25, 1947, No. 20136. Convention date, June 14, 1944. [Class 37] [Also in Group XL (b)] A transmission line along which energy may flow in opposite directions simultaneously is coupled to an auxiliary line at spaced points an odd number of wavelengths apart and extracts energy in one direction along one path and energy in the other direction in another path, the magnitude of the couplings at the spaced points being related in accordance with the coefficients of (a+b)n, n being one less than the number of spaced points. A coaxial line 2, Fig. 1, couples a generator 1 with a load 3, and has coupled to it over apertures 5, 6 a short coaxial line 12 terminating at each end in marking and attenuating coaxial lines 13, 14 feeding current, voltage or power meters 15, 16. Energy flowing from 1 to 3 enters both apertures 5, 6 and flows to both meters, but the energy flowing to meter 15 consists of two equal waves out-of-phase since apertures 5, 6 are spaced by #/4 and meter 15 is thus unaffected; the energy from aperture 5 reinforces that from aperture 6 in the opposite direction, so that meter 16 registers. Thus, meter 16 registers power flowing from 1 to 3 and meter 15 registers reflected power flowing from 3 to 1. Meter 15 indicates reflected power and thus the extent of mismatch of the load 3 with the line 2; when matched, a substitution of the meter 15 for the load 3 will indicate the power supplied to 3; the power supplied to meter 16 can be used as a small calibrating source. The coaxial lines may be replaced by wave-guides, Fig. 2. The coaxial line 12, Fig. 1, may feed square law detectors (e.g. thermo-electric elements, crystals or copper oxide rectifiers) connected in series opposition to a meter which will register the ratio of input to reflected energy or, if suitably calibrated, the power absorbed by the load, Fig. 3 (not shown). A plurality of apertures may connect the wave-guides 202, 204, of Fig. 2, Figs. 6, 7, 10 (not shown), the size of the apertures increasing towards the middle, so as to adapt the apparatus to a wider range of frequencies. In Fig. 4, the invention is applied to a two-wire transmission link between generator 401 and load 403 coupled to a two-wire transmission line 404 by transverse probes 405, 406, a quarter-wavelength apart, each connected to one of the lines 404; the lines 404 may be transposed, thus reversing the operations of the meters, Fig. 5 (not shown). By replacing meter 415 by an absorbing load, the input to meter 416 can be used as a calibrated source of low power, Fig. 8 (not shown), or the whole apparatus can be used as an attenuator, Fig. 9 (not shown). Reference has been directed by the Comptroller to Specification 625,378.
Patent GB-748658-A (GB)
Title: Improvements in handles for hand tools
IPC: B25G1/00
Filed: 1953-07-22
Abstract: 748,658. Tool handles. BAKER, J. July 12, 1954 [July 22, 1953], No. 20376/53. Class 61 In a tool handle 10 provided with a bore to receive the tapered tang 19 of a tool which is forcibly rotated into a screwcutting die-nut 13 fixed at the entrant end of the bore 14 and in which a tang receiving bush 15 is slidable in the bore, the bush being yieldingly retractable against a spring 16, the diameter of the bore 14 is substantially the same as the threaded diameter of the die-nut 13 to allow the bush and spring to be entered through the nut. The bush 15 is retained in the bore by a transverse pin 17 inserted at one side of the .axis of the handle substantially tangential-wise to the circumferential wall of the bore. The handle is moulded about the die-nut. Specification 636,557 is referred to.
Patent GB-205242-A (GB)
Title: Apparatus for making yarn rugs and such like
IPC: D04G3/00
Filed: 1922-07-26
Abstract: 205,242. Felton, W., and Willber, C. July 26, 1922. Drawings to Specification. Breaking-pieces for relieving strain.-A gearwheel may be connected to its shaft by putting one or more weak pins or wires through through the pinion and a bush fixed to the shaft.